Le Grand Paris Express
CUSTOMER
Fayat Métal
PROJECT
CHALLENGES
The extension of Line 14 South, and the Grand Paris Express project in general, is a response to the growing need for mobility in the Île-de-France region. One of the key structures in this project is the Thiais - Pont de Rungis station, a modern and ambitious transport infrastructure. Fayat Métal Grands Projets, in partnership with major players such as SYSTRA, Setec and RAZEL BEC, and under the direction of the RATP Group, won the contract to build the steel structure and cladding for this emblematic station.
Characteristics of the structure
- Length: 80 metres
- Width: 41.5 metres
- Height: 11 metres
- Weight of the structure: 400 tonnes
The structure rests on 3 metre high lattice girders supported by concrete blocks or PRS caisson arches. These elements ensure the stability and strength of the structure, while providing an imposing and elegant design. Beneath these beams, a curved metal framework supports a remarkable nave-shaped ceiling, one of the highlights of the station's interior architecture.
The curtain walls are supported by tubular metal arches for the gables and PRS caissons for the long sides, giving the structure exemplary visual and structural cohesion.
ADVANTAGES
The success of a project of this magnitude depends not only on the precision of the construction, but also on the quality of the design and modelling. Fayat Métal Grands Projets used bocad BIM software to model the entire steel structure. This powerful tool was used to
- Create accurate digital mock-ups,
- Model the structure in 3D
- Produce the IFC mock-up for greater interoperability between the various parties involved in the project,
- Produce 2D plans for construction,
- Produce manufacturing files to ensure a smooth, error-free manufacturing process.
This project demonstrates the importance of digitalisation and advanced modelling in modern construction, facilitating not only the technical implementation but also the continuous improvement of design and manufacturing processes.